Plant Guide > Grasses > Manna Grass > Densely Flowered Manna Grass

Densely Flowered Manna Grass

Densely Flowered Manna GrassGlyceria obtusa (Muhl.) Trin.

Densely flowered Manna-grass is less widely distributed, and in bloom is quite unlike other marsh grasses.

It should be recognized by the erect, bunch-like inflorescence of crowded spikelets.

Densely flowered Manna-grass. Glyceria obtusa (Muhl.) Trin.


Stem 1-3 ft. tall, stout, erect. Ligule very short. Leaves 6'-15' long, 2"-4" wide, flat, dark green.

Panicle 3'-8' long, densely flowered, contracted, branches erect. Spikelets 3-7-flowered, 2"-3" long, somewhat inflated. Outer scales acute, unequal, shorter than flowering scales; flowering scales broad, obtuse, obscurely 7-nerved; palets slightly shorter than flowering scales. Stamens 2 or 3.

Swamps and wet places. July to September.

New Brunswick to NewYork, south to North Carolina.